# Keystone Filler Plant

- **MSHA mine ID:** 3603259
- **Status:** Abandoned
- **Type / commodity:** Facility / Coal (Anthracite)
- **Location:** Lycoming, PA
- **Operator:** Keystone Filler & Manufacturing Company
- **Controller:** David W  Pfleegor
- **Public source rows linked:** 843
- **Source coverage:** 14 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**David W  Pfleegor (C05107) → Keystone Filler & Manufacturing Company (P06127) → Keystone Filler Plant (3603259)**

Current identity source: `msha-mines`. This is a current snapshot, not a historical claim.

## Controller and operator valid-time history

- **David W  Pfleegor → Keystone Filler & Manufacturing Company:** 1950-01-01 through current/open; derived from co-tenure at mine 3603259; source `msha-controller-operator-history`.

- History rows: 1
- Typed edges: 3
- Interval anomalies: 0
- Valid-time bounds: inclusive; date granularity; null end means open-ended in the upstream history row; not independent proof of present control.
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00.

## Assessment signals

1. **SAFETY — 0 since 2021:** Accidents and injuries 20 historical accident/injury rows; 0 coded fatalities and 226 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 83 violation rows across the full record; 42 carry an S&S flag and $8,022 appears in current assessed amounts.
3. **HEALTH — 500 samples:** Occupational health samples 397 coal dust; 73 coal quartz; 30 noise. 0 personal-sample rows have a published C/E ratio above 1; 6 noise rows have an action-level or PEL dose above 100%. These are separate measures, not a silica exceedance count. Silica results and sample status are shown separately.
4. **PRODUCTION — 0 tons:** Quarterly production and employment 15K employee hours and 31 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 43 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 36 civil-penalty docket/decision rows, and 7 conference records linked by issuance number.
6. **CONTRACTORS — 0 linked entities:** Contractors Contractors are linked through this mine’s violation or accident records. Their production and hours cover all their operations, so they are not included in this mine’s totals.
7. **INSPECTIONS — 0 since 2021:** Inspections 80 inspection events and 2K published inspection hours across the historical record.

## EIA annual operating context

No matched record in the 2024 EIA coal-public workbook. This may be inapplicable for a non-coal operation.

## Recent Title 30 crosswalk

Snapshot current through 2026-08-19.

- **30 CFR 77.1606 — Loading and haulage equipment; inspection and maintenance.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-Q/section-77.1606
- **30 CFR 77.1605 — Loading and haulage equipment; installations.** (5 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-Q/section-77.1605
- **30 CFR 77.314 — Automatic temperature control instruments.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-D/section-77.314
- **30 CFR 77.300 — Thermal dryers; general.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-D/section-77.300
- **30 CFR 77.205 — Travelways at surface installations.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-C/section-77.205
- **30 CFR 77.207 — Illumination.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-C/section-77.207

## Source coverage

- **Accident, Injuries, and Illnesses:** 20 rows; 2000-01-25 through 2004-05-12; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2004-07-10 through 2004-07-10; source ID `msha-addresses`
- **Assessed Violations:** 80 rows; 2000-05-01 through 2004-03-29; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 36 rows; 2004-07-12 through 2004-08-31; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 397 rows; 2000-01-03 through 2004-04-21; source ID `msha-coal-dust-samples`
- **Conferences:** 7 rows; 2002-02-04 through 2004-04-15; source ID `msha-conferences`
- **Controller and Operator History:** 1 rows; 1950-01-01 through 1950-01-01; source ID `msha-controller-operator-history`
- **Inspections:** 80 rows; 2000-01-27 through 2004-07-01; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 24 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 10 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 30 rows; 2000-03-16 through 2003-06-30; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 73 rows; 2000-05-10 through 2003-12-11; source ID `msha-quartz-samples`
- **Violations:** 83 rows; 2000-05-01 through 2004-04-19; source ID `msha-violations`

## Caveats

- This is public-record decision support, not legal advice or an official MSHA record.
- Missing data can indicate no event, publication delay, an unresolved identity, or inapplicability.
- Contractor production data is entity-level and is not attributed to this mine.

## Alternate representations

- HTML: `/mines/keystone-filler-plant-3603259`
- JSON: `/api/v1/mines/keystone-filler-plant-3603259`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/3603259/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/3603259/relationships`
- MCP resource: `mine://3603259/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`